Process for rendering chlorides of ketone soluble by means of alkalies



, 10 lowing is a specification.

I ao'product.v When carrying out the process, productsoxidized-by the action of chlorine g 45 chlorine on a, semiaste of cellulose, the 'ANTOJINE REGNOUF on Patented 1? ch. l3, 11923.;

UNETED STATES PATENT @FFHCE ANTOINE REGNOUF DE VAINS, 01E MIRIBEL, AIN, FRANCE.

PROCESS FOR RENDERING CHLORIDES OF KETONE SOLUBLE BY MEANS OF ALKALIES.

K0 Drawing. Application filed August 31, 1921. Serial No. 497,352.

To all whom it may concern: used lye emanating from a lixiviation of cel- Be it known that I, ANTOINE REcNoUr DE lulosic materials can be used as solvent. VAiNs, a citizen of the Republic of France, The principle of this reaction is the folresiding at Rue Henri-Grobon, Miribel. lowing:

5 Ain, France, have invented new and useful The alkaline lye acts during lixiviation 50 Improvements in Processes for Rendering upon the non-cellulosic materials. as is gen- (hlorides 0f Ketone Soluble by Means of erally the case with a strong base and a Alkalies (for which I have made application weak acid. The already used lye no longer in France June 2, 1920), of which the folcontains the hydrate but a salt. The chloride of lignone, as well as any other oxida- 55 It is'known from the experiments made by tion-product formed by the action of the Messrs. Cross and Bevan that ligno and chlorine on the nearest atoms of hydrogen of pecto-cellulose, lixiviated with a predeterthe ketonic groups (C0), acts upon the'almined percentage of alkalifabsorb during ready used lye in the same way as would a the chlorination subsequent to lixiviation, a strong acid in the presence of a salt arising so numberof atoms of chlorine corresponding from the combination of a weak acid with a to the number of ketone groups (C0) constrong base. It therefore displaces the weak .tained in their formula; It is also known acid from its combination with the base, that the organic chlorides thus formed, or forming itself a combination with the alkathe oxidation products obtained by the acline ion and thus rendersthe chlorinated or 65 tion of chlorine on a semi-paste dissolve in ,OZidiZed O ganic products Soluble. i an alkaline lye and finally leave the bare The reaction therefore stops of its own cellulose. This alkaline treatment is relaaccord .as soon as, the whole of the products tively vcostly in that it necessitates a new to be rendered soluble has reacted and the quantity of fresh alkaline products for the lye cannot-fix itself upon the cellulose and 'm liberation of adefinite quantity of cellulose. cannot therefore give it a reddish tint- Furthermore, it is also known that theex- A simple washing operation suffices to get cess alkali fixes itself upon thecellulose and rid of the Weak acid set free, the chloro-orgives it a reddish tint. This tint resists all ganic'alkaline' compound, the oxidation prodthe oxidizing agents hitherto employed for ucts rendered soluble v as well as of the exthe final bleaching'of the cellulose and this cess oflye.

represents a great disadvantage. y I claim;

The present invention is characterized by 1. Process for the solut on of chlor des of the application, was solvents, of one or more .ketone formed by the action of chlorine on '35 alreadv used alkaline lyes resulting from the lignoor pecto-cellulose consisting in treatso li'xivia-tion of any organic material with a ing said material with alkaline solutions view to automatically efl'ecting thesolution emanating fromthe lixiviation of cellulosic of the chloride of lignin (chloride of ligmaterial. 7

none) as well as of any other oxidation. 2. Process for the solution of organic Jeitherfwith a view to dissolving chlorides of [on a, semi-paste of cellulose, consisting in ketones," formed by the action of chlorine on treating the materlalwith already used 211- v a ligno or pecto-eellul'ose, or to dimlving; kaline solutions emanating from the liznviaorganic products formed by the action of .tion'of cellulosic material. 

